P2200high severityPowertrain
NOx Sensor Circuit Bank 1
on 2008-2015 Audi R8 4.2L V8 · AWD
What this code means
Malfunction in the NOx sensor circuit on bank 1. Sensor may not be providing accurate readings.
Symptoms
- Check engine light
- Failed emissions
- SCR system may deactivate
Common causes
- Failed NOx sensor
- Wiring damage
- Connector corrosion
- ECM fault
Diagnostic steps
- Check NOx sensor connector
- Measure heater circuit
- Monitor sensor output with scan tool
Repair notes
Replace NOx sensor bank 1. Verify wiring integrity first.
🔌 Don't have a code reader?
Any of these will read and clear this code — pick by how deep you want to go.
Bluetooth code reader (~$25)
Veepeak OBDCheck BLE →
Pairs with your phone — reads and clears codes, live data.
Serious DIY (~$100)
BlueDriver Pro →
Enhanced codes (ABS, airbag, TPMS) plus repair reports.
Shop-grade tablet (~$300+)
Autel MaxiCOM MK808S →
Bidirectional tests, service resets, all systems.
As an Amazon Associate, OLP earns from qualifying purchases — how we link. This never changes the specs we publish.
Other Powertrain codes on this vehicle
00532
Supply Voltage B+ Signal too Low
16394
Camshaft/Crankshaft Position Correlation Bank 1
16395
Camshaft Position Actuator Circuit/Open Bank 1
16486
Mass or Volume Air Flow Circuit Low Input
16487
Mass or Volume Air Flow Circuit High Input
16500
Engine Coolant Temperature Circuit Malfunction
16501
Engine Coolant Temperature Circuit Low Input
16502
Engine Coolant Temperature Circuit High Input
16514
O2 Sensor Circuit Bank 1 Sensor 1
16515
O2 Sensor Circuit Low Voltage Bank 1 Sensor 1